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Deinotherium

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Deinotherium was a genus of massive, extinct proboscideans. Proboscideans are the group of animals that includes modern elephants. These creatures lived from the Middle Miocene until the end of the Early Pleistocene. They were widespread across the Earth. They ranged from East Africa to Eurasia, covering Western Europe and the Indian subcontinent.

Dinotherium
Dinotherium

Deinotherium had a very different body than modern elephants. They had more slender limbs and a notably more flexible neck. Their skulls were short, low, and flattened on top. This is different from modern elephants, which have high, domed foreheads. They also had a large, retracted nasal opening. This opening shows they possessed a proboscis, or trunk.

Deinotherium skeletals alternate
Deinotherium skeletals alternate

The most striking feature of Deinotherium was its tusks. In modern elephants, tusks grow from the upper jaw. In Deinotherium, the tusks grew from the lower jaw, known as the mandible. These tusks grew downward and curved backward. Some specimens had tusks that formed an almost semicircular shape. Others had tusks that grew almost vertically. These tusks could reach a length of 3 meters.

Em - Deinotherium sp. - 2
Em - Deinotherium sp. - 2

Their teeth also worked differently than those of modern elephants. They had teeth that resembled those of a tapir. They possessed two sets of teeth: bilophodont and trilophodont teeth. These teeth had two or three ridges. The molars and rear premolars were used for shearing plants. The other premolars were used for crushing. This setup made them browsers, meaning they primarily ate leaves.

Deinotherium giganteum skull
Deinotherium giganteum skull

Deinotherium was incredibly large. Some species were much bigger than modern elephants. For example, adult males of Deinotherium giganteum reached 3.8 meters at the shoulder. They could weigh as much as 11 tonnes. Another species, D. bozasi, reached 4 meters at the shoulder and weighed 13 tonnes.

Naturhistorisches Museum Mainz- (2)-Deinotherium Giganteum
Naturhistorisches Museum Mainz- (2)-Deinotherium Giganteum

The history of discovering Deinotherium was full of controversy. In 1613, large bones were found in France. Some people claimed these were the remains of a giant king named Theutobochus. However, experts like Jean Riolan argued the bones belonged to a large animal. Later, in 1634, Peiresc concluded the story was a hoax. He found the coins found with the bones were not what people claimed. Eventually, the bones were recognized as belonging to Deinotherium.

La terre avant le déluge, 1863 "Dinothérium". (4514456382)
La terre avant le déluge, 1863 "Dinothérium". (4514456382)

Many scientists helped define this genus. In 1822, Georges Cuvier called the remains "Tapirs gigantesques." In 1829, Johann Jakob von Kaup gave them the name Deinotherium. This name comes from Ancient Greek and means "terrible beast." Scientists have found remains in many places, including Germany, Romania, and Bulgaria. In Bulgaria, a nearly complete animal was found in 1965.

Deinotherium skeletals alternate
Deinotherium skeletals alternate

Deinotherium likely went extinct due to environmental changes. During the latter half of the Neogene, forested areas were replaced by open grasslands. As browsers, these animals relied on leaves from forests. This change in habitat likely made it hard for them to survive. They thrived the longest in Africa, where they lived until about 1 million years ago.

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🖼️ Images & Media (7)
File:La terre avant le déluge, 1863 "Dinothérium". (4514456382).jpg
La terre avant le déluge, 1863...
File:Deinotherium_skeletals_alternate.png
Deinotherium_skeletals_alternate.png
File:Em - Deinotherium sp. - 2.jpg
Em - Deinotherium sp. - 2.jpg
File:Naturhistorisches Museum Mainz- (2)-Deinotherium Giganteum.jpg
Naturhistorisches Museum Mainz-...
File:Deinotherium giganteum skull.JPG
Deinotherium giganteum skull.JPG
File:Hauerelefant-Deinotherium.jpg
Hauerelefant-Deinotherium.jpg
File:Dinotherium.jpg
Dinotherium.jpg
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